Quote:
Originally posted by ryph
yes, actually
think of it when a helicopter takes off, the propeler exerts a force greater than its weight onto the ground to lift off. and in order to stay flying, must exert the same amount of force as its own weight. otherwise it will drop.
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you must be kidding... if a 15lbs birds fly above my head... you think I'll feel a 15lbs+ on my head?